Opaque Resin Base for Illumination Switch Light Leakage
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Solution Overview
Problem
Conventional illumination switch devices experience unintentional light leakage due to minute gaps between indicator lenses and other components, leading to increased size and inefficiencies.
Innovation Solution
The design incorporates a base made of opaque resin that covers the side faces of indicator lenses, eliminating clearance between them and integrating the lenses together, along with light blocking walls between emitters to prevent light leakage and reduce device size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If indicator lenses are disposed with clearances between them and other components, then assembly and alignment are easier, but light leakage occurs and device size increases
Solution Approach 1:
A base made of opaque resin is introduced as an intermediary component between the indicator lenses and other components. This base covers the side faces of the indicator lenses and prevents light leakage through clearances, while still allowing for easier assembly and alignment of the indicator lenses themselves.
Solution Approach 2:
Light blocking walls are disposed between adjoining indicator lenses and between the indicator lenses and other components in advance, before light emission occurs. This preliminary light-blocking arrangement prevents any potential light leakage through clearances without affecting the assembly process of the indicator lenses.
2Stability of the object's composition
If clearances are maintained between indicator lenses and other components, then thermal expansion and misalignment are accommodated, but device size increases
Solution Approach 1:
The opaque resin base acts as a mediator that fills and covers the clearances between indicator lenses and other components. This eliminates the need for additional clearance space while still accommodating thermal expansion and misalignment through the flexible nature of the resin material.
Solution Approach 2:
The base integrates multiple functions: it holds the indicator lenses, covers their side faces, prevents light leakage, and accommodates thermal expansion. By merging these functions into a single component, the device size is reduced while maintaining stability.
3Ease of repair
If indicator lenses are mounted separately to the base, then replacement and maintenance are easier, but manufacturing complexity and assembly time increase
Solution Approach 1:
The indicator lenses are kept as separate, interchangeable components that can be individually replaced. The base provides a standardized mounting structure that facilitates easy replacement while maintaining integration benefits for light leakage prevention.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This configuration effectively prevents light leakage, achieves size reduction, and simplifies the mounting process of indicator lenses, enhancing working efficiency and device compactness.
Implementation Method 1
The base is made of an opaque resin, and covers side faces of the indicator lenses while being in tight contact with the side faces
Data Source
AI summary
An illumination switch device includes a push button, a plurality of indicator lenses, a holder, a detector, a plurality of light emitters, and a base. The push button has an internal space and an opening. Each indicator lens has a columnar shape. The indicator lenses are juxtaposed in the internal space of the push button. The holder holds the push button such that the push button is movable in a longitudinal direction of each indicator lens. The detector detects a displacement of the push button in the longitudinal direction. The light emitters are respectively disposed opposite one ends of the indicator lenses in the longitudinal direction. The base is made of an opaque resin, and covers side faces of the indicator lenses while being in tight contact with the side faces. The base is integrated with the indicator lenses.